Bit Counting in Golang
The challenge
Write a function that takes an integer as input, and returns the number of bits that are equal to one in the binary representation of …
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129 articles about go development, tools, and best practices
How to Find Next Higher Number with Same Bits in Golang
The challenge
Find the next higher number (int) with same ‘1’- Bits.
I.e. as much 1 bits as before and output next higher than input. Input is …
How to Find the First Non-Repeating Character in Golang
The challenge
Write a function named first_non_repeating_letter that takes a string input, and returns the first character that is not repeated …
How to Find the Last Fibonacci Digit in Golang
The challenge
Return the last digit of the nth element in the Fibonacci sequence (starting with 1,1, to be extra clear, not with 0,1 or other …
Read Article →How to Validate an IP Address in Golang
The challenge
Write an algorithm that will identify valid IPv4 addresses in dot-decimal format. IPs should be considered valid if they consist of four …
Read Article →Formatting Strings with Fmt in Golang
Fmt provides printing to standard output (usually the console) and formatting of strings capabilities.
The basics of Print and Println
The main …
Read Article →How to Read from Standard Input in Golang
Reading from “standard input” is really useful if you are making a command-line application and require user input.
package main
import ( …How to Install Golang on WSL/WSL2
If you need to install Golang on WSL under Windows 10 or higher, you can follow these few steps.
First remove any old versions lying around
sudo rm …How to Repeat by String Index in Golang
The challenge
Create a function that repeats each character by the amount of it’s index value of the original string.
Examples: …
Read Article →Calculate the Third Angle of a Triangle in Go
The challenge
You are given two interior angles (in degrees) of a triangle.
Write a function to return the 3rd.
Note: only positive integers will be …
Read Article →How to Detect if Numbers are in Order in Golang
The challenge
In this challenge, your function receives an array of integers as input. Your task is to determine whether the numbers are in ascending …
Read Article →Alternate Capitalization in Golang
The challenge
Given a string, capitalize the letters that occupy even indexes and odd indexes separately, and return as shown below. Index `` will be …
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